1. S. Gunasekaran and A.K. Sundramoorthy, Transparent Conducting Films Containing Single-Walled Carbon Nanotubes Dispersed in an Azo Dye, US Pat. 20150318070-A1 (11-Dec-2015). (download)
2. B.E.M. Chan and A.K. Sundramoorthy, Method of Enriching Different Species of Carbon Nanotubes, US Pat. 2014308194-A1, Oct 16, 2014. (download)
3. B.E.M. Chan, A.K. Sundramoorthy, and J. Wang, Self-Assembly of Calixarene-Dispersed Oxidized Graphene For Transferable Transparent Conductive Thin Films, US Pat. Appl. 62/021,767, 2014.
4. S.-F. Wang, C.-K. Yang, S. Ashok Kumar# and I-l. Ho, Dispersing Agent of MWCNTs and the Method for Preparation and Application of Homogeneous MWCNTs Dispersion, US Pat. 20120070566 A1, Mar 22, 2012. (download)
(#also known as: S. Ashok Kumar in earlier publications).